Gaoqiaogou, bed 46 (Cambrian to of China)

Where: Sichuan, China (32.2° N, 108.4° E: paleocoordinates 23.9° N, 157.9° E)

• coordinate estimated from map

• small collection-level geographic resolution

When: Xystridura jielingensis trilobite zone, Baguamiao Formation, Taijangian to Taijangian (509.0 - 497.0 Ma)

• 15 m thick, Xystridura jielingensis zone of Yang 1993, probably equivalent to Hypagnostus parvifrons zone of Sweden and Ptychagnostus intermedius zone of Kazakhstan, Drumian

• bed-level stratigraphic resolution

Environment/lithology: slope; lithified lime mudstone

• platform margin slope
• dark-grey thin-bedded micrite limestone, with a layer of bioclastic limestone

Size class: macrofossils

Preservation: cast, mold/impression

Primary reference: J. Yang, S. Yu, G. Liu, N. Su, M. He, J. Shang, H. Zhang, H. Zhu, Y. Li and G. Yan. 1993. Cambrian stratigraphy, lithofacies, paleogeography and trilobite faunas of East Qinling-Dabashan Mountains, China 1-246 [W. Kiessling/U. Merkel]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 127061: authorized by Wolfgang Kiessling, entered by Uta Merkel on 23.04.2012

Creative Commons license: CC BY (attribution)

Taxonomic list

Show authors, comments, and common names
Artiopoda
 Agnostida - Spinagnostidae
Hypagnostus parvifrons
Hypagnostus parvifrons Linnarsson 1869
Trilobita
 Corynexochida - Dorypygidae
? Dorypyge sp.
? Dorypyge sp. Dames 1883 trilobite
 Redlichiida - Xystriduridae
? Xystridura sp., ? Xystridura jielingensis n. sp.
? Xystridura sp. Whitehouse 1936 trilobite
? Xystridura jielingensis n. sp. Yang et al. 1993 trilobite